diff --git a/pkg/operator/ceph/cluster/osd/spec.go b/pkg/operator/ceph/cluster/osd/spec.go
index 98d927564..82f9b79e9 100644
--- a/pkg/operator/ceph/cluster/osd/spec.go
+++ b/pkg/operator/ceph/cluster/osd/spec.go
@@ -886,10 +886,13 @@ func (c *Cluster) getActivateOSDInitContainer(configDir, namespace, osdID string
 
 	adminKeyringVol, adminKeyringVolMount := cephkey.Volume().Admin(), cephkey.VolumeMount().Admin()
 	volume = append(volume, adminKeyringVol)
+	udevVolume := v1.Volume{Name: "udev", VolumeSource: v1.VolumeSource{HostPath: &v1.HostPathVolumeSource{Path: "/run/udev"}}}
+	volume = append(volume, udevVolume)
 	volMounts := []v1.VolumeMount{
 		{Name: activateOSDVolumeName, MountPath: activateOSDMountPathID},
 		{Name: "devices", MountPath: "/dev"},
 		{Name: k8sutil.ConfigOverrideName, ReadOnly: true, MountPath: tempEtcCephDir},
+		{Name: "udev", MountPath: "/run/udev"},
 		adminKeyringVolMount,
 	}
 
diff --git a/pkg/operator/ceph/cluster/osd/spec_test.go b/pkg/operator/ceph/cluster/osd/spec_test.go
index 6532d7c85..615e041d8 100644
--- a/pkg/operator/ceph/cluster/osd/spec_test.go
+++ b/pkg/operator/ceph/cluster/osd/spec_test.go
@@ -143,10 +143,10 @@ func testPodDevices(t *testing.T, dataDir, deviceName string, allDevices bool) {
 	assert.Equal(t, corev1.RestartPolicyAlways, deployment.Spec.Template.Spec.RestartPolicy)
 	assert.Equal(t, "my-priority-class", deployment.Spec.Template.Spec.PriorityClassName)
 	if devMountNeeded && len(dataDir) > 0 {
-		assert.Equal(t, 9, len(deployment.Spec.Template.Spec.Volumes))
+		assert.Equal(t, 10, len(deployment.Spec.Template.Spec.Volumes))
 	}
 	if devMountNeeded && len(dataDir) == 0 {
-		assert.Equal(t, 9, len(deployment.Spec.Template.Spec.Volumes))
+		assert.Equal(t, 10, len(deployment.Spec.Template.Spec.Volumes))
 	}
 	if !devMountNeeded && len(dataDir) > 0 {
 		assert.Equal(t, 1, len(deployment.Spec.Template.Spec.Volumes))
@@ -164,7 +164,7 @@ func testPodDevices(t *testing.T, dataDir, deviceName string, allDevices bool) {
 	initCont := deployment.Spec.Template.Spec.InitContainers[0]
 	assert.Equal(t, "quay.io/ceph/ceph:v15", initCont.Image)
 	assert.Equal(t, "activate", initCont.Name)
-	assert.Equal(t, 4, len(initCont.VolumeMounts))
+	assert.Equal(t, 5, len(initCont.VolumeMounts))
 	initCont = deployment.Spec.Template.Spec.InitContainers[1]
 	assert.Equal(t, "quay.io/ceph/ceph:v15", initCont.Image)
 	assert.Equal(t, "expand-bluefs", initCont.Name)